LifeHackers.com talked about how much worrying that people do. And, they say that worry causes stress.
The Angels tell us that we can give up worry, because we have the free will to choose not to worry and to trust that all will be well. When we communicate worry to others, we create an environment of negativity. We can change that by allowing each action to "live" on its own.
How did we learn to worry? The answer is that we learned from others who worry. It is learned so it can be unlearned.